UBUNTU-CVE-2021-3998

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2021-3998
Downstream
USN-5310-1
Published: 01 Feb 2022, 00:00
Last modified:04 Feb 2026, 02:40

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Feb 2022, 00:00
Published
Vulnerability first disclosed
04 Feb 2026, 02:40
Last Modified
Vulnerability information updated

Description

A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Systems

  • ubuntu•glibc

    < 2.35-0ubuntu1

References (3)